well, you need to give more info, maybe a name you remember, the builder who made it, if you left some comment what did you say on it, etc..
it's like telling random people in the streets that you're trying to find your car that's in some other "city" and that's its a red car and that's all, no one will figure where it is with the low amount of info you're giving, try to be more specific
and since its a 7-year-old map, and with tens of thousands of maps that have been published here since then, I doubt you'll ever find it